摘要
针对高分辨率条件下,多通道星载合成孔径雷达(Synthetic Aperture Radar,SAR)姿态控制误差对成像质量影响问题开展研究.首先建立多通道姿态控制误差数学模型,在此基础上推导了姿态控制误差与接收天线相位中心位置、控制误差角度以及天线下视角等参数的数学表达式,定量化地分析了该误差对成像质量的影响方式与影响大小,并提出一种高效精确的误差补偿方法.最后,计算机仿真实验验证了本补偿方法的正确性及有效性.
The effect of attitude control error on multi-channel spaceborne synthetic ap- erture radar （SAR） imaging is studied. Firstly, the mathematical model of multi-chan- nel attitude control error is established. Then, based on the model, the quantificational relationship between the attitude error and SAR imaging parameters such as position of receiving antenna phase center, angle of control error, and grazing angle, is derived. Moreover, the influence on SAR imaging caused by attitude error is analyzed in detail. Based on the analysis, a high-efficiency and accuracy method of eompensation is pro- posed. Finally, computer simulation prove the validity of the compensation method.
出处
《电波科学学报》
EI
CSCD
北大核心
2014年第6期1070-1075,共6页
Chinese Journal of Radio Science
